A semiconductor memory device including a memory cell array with electrically rewritable and non-volatile memory cells arranged therein, wherein the device has such a test mode that includes a page searching sequence for searching a fast page with the fastest write speed in the memory cell array. The glove box assembly includes a storage bin and a dedicated climate controlled bin. The inlet of the refrigerant passage is provided in a lowermost portion at a bottom of the casing. The oxygen-attracting layer is formed by forming a metal layer over the interfacial oxide layer, where the metal layer combines with oxygen to form a silicate. In another aspect of the present invention, a PCR device is provided with a built-in analysis device, such as a CE device, for verifying the results of the PCR process.